Gas-pressure regulator and cut-off



(No Model.) n

J. T, SOLLBNBERGER 8v H. G. WOODY.

GAS PRESSURE REGULATOR AND GUT-OPF.

No. 359, tented Mar. 22, 1887.

uA vzrzns mwmnugnmm. wmingm, n cA UNITED STnTns PnTnNT Ormea,

JOHN T. SOLLEUBERGER AND HORACE G. VOODY, OF KOKOMO, NDIANA.

GAS-PRESSURE REGULATOR AND CUT-OFF.

SPECIFICATION forming part of Letters Patent No.` 359,822, dated hdai'ch 22, 1887.

Application tiled January 24, 1887, Serial No. 25,220. (No model.)

To aZZ whom t may concern:

Be it known that we, JOHN T. SoLLnNBue een and Hormon G. WooDY, citizens of the United States, residing at Kokomo, in the county of Howard and State of Indiana, have invented a new and useful Improvement in GasPressure Regulators and Cut-Offs, of which the following is a specification.

Our invention relates to an improved gasrcgulator, designed more particularly to be used in connection with naturalgas systems.

The objects of our improvement are, first, to so control the iiow ofgas from the mains to the consumers system pipes that a uniform pressure will be maintained therein, and, second, to automatically shut off' the supply of gas when the pressure, on account of a checked flow at the well or from any other reason, falls below the point necessary to sustain combustion, thereby preventing the flooding of houses and factories with gas when the normal dow is resumed.

The accompanying drawings illustrate our invention.

Figure 1 represents an exterior side elevation. Fig. 2 is a front elevation having the front cylindenhead removed. Fig. 3 is a vertical longitudinal section at a, Fig. 2. Fig. 4 is a section at I), Fig. 2.

The case of our regulator consists of three principal parts, viz: the cylinder A, the lowpressure chamber B, and the high-pressure chamber C.

Cylinder Ais closed at one end, and the opposite end is provided with an outwardlyproAv jecting annular tiange, d. The low-pressure chamber B is, throughout most of its length, a semi-cylinder having a iiange, g, and terminating in a cylindrical port-ion which is provided with a tlange, e, corresponding to the flange el on cylinder A. The dat portion of the semi-cylinder is closed by a plate, jwhich extends beyond each side to form flanges h It, and the half end of the cylindrical portion above platef is also closed. The high-pressure chamber is formed of a semi-cylindrical shell, D, closed at one end, and having an an nularauge, t, at the opposite end, and straight flanges j j j.

Chamber B is joined to cylinder A by bolts passing through flanges d and e, and chamber C is secured to chamber B by bolts passing through angesj and h. The open ends of chambers B and C are closed by a removable head, E. Secured between flanges (Z and e is 5 5 an annular elastic diaphragm, 7c, to which is secured a piston, Z, which loosely fits cylinder A. Piston Z is forced normally outward by a spiral spring, m, resting between the piston and a follower, a, arranged to slide easily within cylinder A. The tension of spring m is adjusted by means of a screw, o, passing through the closed end of the cylinder.

Communication between chambers B and C is established through an opening, p, in plate f. The effective area of said opening p is adjusted by means of a sliding plate, r, mounted in suitable ways, so as to slide on platef, and having a corresponding opening, s. Plate r is connected with piston Z by means of a rod,

t, one end of which passes through a slot, 3, in plate f and is secured to the pistou, the arrangement being such that when the piston stands in its normal position the openings s and p are opposite. ered and communication between chambers B and C cut off by a flap-valve, u, hinged to'plate f. Valve n is raised by means of a rod, c, passing through a stuffing-box, w, in shell D.

Mounted within chamber der, F, having one end closed by an annular diaphragm, H, and piston er. Piston x is held normally outward by a spiral spring, y, resting between the pistou and a follower, c. The

Openings s and p arecov- C is a small cylin- 8o tension of spring y is adjusted by means of a screw, K, passing through the end of the chamber. Secured to the front of piston .ris a bent arm, l, having a hook, 2, adapted to engage and sustain the front edge of valve a when the piston is forced inward.

I is the inletpipe which enters the highpressure chamber C, and J is the dischargepipe which passes out from chamber B.

The operation of our device is as follows: Valve u being closed, ber C through the pipe I. The pressure of the gas forces piston .c inward, thus compressing spring y until its resistance is equal to the gas-pressure. Valve u is now raised by means of the rod o, the front edge of the valve engagroo through openings s and p to chamber B, thus gas is admitted to chamforcing piston Z into cylinder A, compressing spring m and sliding plate 'r backward over plate f, thus partially closing the opening p, the gas being at the same time discharged to the consumer through pipe J,

It will be understood that the tension of` springm being properly adjusted by screw o, the pressure in chamber B will be uniform, While the pressure in chamber C will vary with the pressure ofthe source ofsupply. S0 long as there is sufficient pressure in chamber C to overcome the tension of spring y and hold pistonw inward, hook 2 will remain in engagement with the valve u, and the valve will thus be held open; but should the pressure at the source of supply fail or be shut oft', the piston will more outward, the valve be disengagedy and closed, thus cutting olf communication` with the consumers pipes, and on a return of the pressure no gas can reach the consumer until some person has again opened the valve.

We claim as our invention- 1. In a gas-pressure regulator, the combination ofthe cylinder, the piston mounted therein, the spring controlling said piston, means for adjusting the tension of said spring, the lowfpressure chamber,thehigh-pressure chamber, the plate forming a partition between said chambers and having an opening through which communication between the chambers is established, the sliding plate arranged to partially cover said opening, and the arm connecting said slidingplate and piston, all comf bined and arranged to cooperate in the mauner specified.

2. In a gas-pressure` regulator and cut-off, the combination,with a chamber in which the gas is first received from the source ofsupply, an exit from said chamber, and a valve cov` ering said exit, of a cylinder mounted within said chamber, a piston mounted in said cylinder, a spring arranged to force the piston outward, means for adjusting the tension of the spring, and an arm attached to the piston and arranged to engage the valve, ,whereby the valve is held-open when the piston is forced inward and released when the piston is forced outward, substantiallyT as and for the purpose specified.

3. In a gas-pressure regulator and cntloft', the cylinder A, the piston mounted therein, the spring arranged to force said pistonoutward, the high-pressure chamber C, and lowpressure chamber l B, the partition between said chambers having an opening through which communication is established between them, the sliding plate arranged to partially cover said opening and connected to said piston, the valve, the cylinder arranged in the high-pressure chamber, the piston in said cylinder, the spring arrangcdto force said piston outward, and the hook attached to the piston and arranged to engage the valve, all combined and arranged to co-operateas and for the pnr pose specified.

JOHN T. SOLLENBERGER. HORACE G. VVOODY; W'itnesses:

J @HN INGELs, FRANCIS H. THoMrsoN. 

